[PATCH] x86/paravirt: make BUG_func() usable by non-GPL modules

From: Juergen Gross
Date: Tue Jan 09 2024 - 03:22:58 EST


Several inlined functions subject to paravirt patching are referencing
BUG_func() since the recent switch to the alternative patching
mechanism.

As those functions can legally be used by non-GPL modules, BUG_func()
must be usable by those modules, too. So don't use EXPORT_SYMBOL_GPL()
for exporting BUG_func().

Fixes: 9824b00c2b58 ("x86/paravirt: Move some functions and defines to alternative.c")
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
arch/x86/kernel/alternative.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 55e205b21271..692f597e414b 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -402,7 +402,7 @@ noinstr void BUG_func(void)
{
BUG();
}
-EXPORT_SYMBOL_GPL(BUG_func);
+EXPORT_SYMBOL(BUG_func);

#define CALL_RIP_REL_OPCODE 0xff
#define CALL_RIP_REL_MODRM 0x15
--
2.35.3